Hi ,List:
search some materials, find that the decode method of AFS convolutional
code is different from the EFS`, it use RSC, and need SOVA(soft output
viterbi algorithm). am i right?
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Speaker: Sylvain Munaut
or how to turn a phone into a BTS
The calypso baseband and its companion chips are used on the Motorola C123
among other and are now well known for being supported by the Osmocom-BB
open source GSM baseband implementation. A couple years ago, it was hacked
a little further by using it as a raw bits capture device allowing the
interception of GSM traffic very cheaply.
This talk will present some further work on that platform, showing that
just because a device wasn't design for a given task doesn't mean it can't
do it. More specifically how you can hack this phone to act as a GSM
basestation and broadcast your own network.
http://youtu.be/xFjVcxMpA6c
Hi all,
as the year 2012 has already ended or will soon end depending on your
timezone, it might be a good occasion to start thinking of an OsmoDevCon
2013.
I personally percevied OsmoDevCon 2012 as a big success, and it was fun
to bring everyone together.
Generally, I prefer to keep the spirit of an invitation-only
developer+contributor-only event of those involved in Osmocom. At the
same time, I would consider it a good idea to add a one day
user-conference to the schedule, where we try to get interested users up
to speed with the various projects, possibly including some workshops
and the like.
So schedule-wise, I would suggest something like:
* one day user conference
* two day developer/contributor event
* optionally: 1-2 "hacking days".
The concept of "hacking days" has proven to be quite useful for the
netfilter project in the past (Pablo and I can acknowledge to that
fact). I'm not sure how many people would be able to spend even more
days of their schedule, but even if it's a much smaller group it would
still be useful, IMHO.
I'd like you to
1) provide feedback on the ideas about the one-day user event and the
hacking days
2) consider whether late march (like 2012) would be a good schedule
again
3) what we can improve from the last event
In terms of improvements, I so far have noted down:
* larger venue needs to be found
* complaints about the venue not having sufficient heating
Venue-wise, I would again suggest to hold it in Berlin, as it's
reasonbly well connected, has lots of low-cost flights to it,
accomodation is not too expensive and holger/me/sysmocom can take care
of local organization related activities. Hoewver, if somebody has a
strong opinion against berlin _and_ is willing to organize it, I'm not
completely against another venue.
Regards and happy new year,
Harald
--
- Harald Welte <laforge(a)gnumonks.org> http://laforge.gnumonks.org/
============================================================================
"Privacy in residential applications is a desirable marketing option."
(ETSI EN 300 175-7 Ch. A6)
Hi,
yesterday I fucked up the second C123 while trying to replace the filters, so I decided to buy one model from Sysmocom (with the filters already replaced), but due to too many orders they do not offer this service anymore.
Is somebody on this list able and willing to sell me one C123 with the filter kit already built in (and tested)? I'd really appreciate if someone, who is more experienced in SMD soldering than me, could help me out.
If so, please contact me at: clemensgru(a)gmail.com
I live in Austria, so delivery from Europe should not be a problem.
Thanks.
Clemens
Hi,
yesterday I fucked up the second C123 while trying to replace the filters, so I decided to buy one model from Sysmocom (with the filters already replaced), but due to too many orders they do not offer this service anymore.
Is somebody on this list able and willing to sell me one C123 with the filter kit already built in (and tested)? I'd really appreciate if someone, who is more experienced in SMD soldering than me, could help me out.
If so, please contact me at: clemensgru(a)gmail.com
I live in Austria, so delivery from Europe should not be a problem.
Thanks.
Clemens
Dear List
I wanted to buy LNA and PA for my phone
what specification should i use for purpose increasing signalling strength.
please guide me
thanks
--
Akib Sayyed
Matrix-Shell
akibsayyed(a)gmail.com
akibsayyed(a)matrixshell.com
Mob:- +91-966-514-2243
In ccch_scan the burst information is first saved to file,
then local_burst_decode is applied before sending to GSMTAP.
Would it not be more useful to save burst data after local_burst_decode?
Is there some utility in storing it in its raw form? Looks like I am
missing something?
B.
Hi,
Is there a kraken version vailable for uplink?
what do i need to change on the source code in order to find the kc for uplink bursts?
thanks
ps. all downlink frames seem to have random padding here...
Congrats
Sylvain for such great engineering work.its really a good and cheap
solution who want to learn about GSM.
there are certain questions didnt get chance to be asked in conference.
here are some
1.is it possible in future to implement one phone and atleast 4 timeslot
cell?
means 3 voice and 1 BCCH.
2. what about encryption? is it possible to implement encryption ?
3.also how can be solve relying on commercial cell?
4.the code which will be released will contain single slot operation or
multi slot with voice (after work and developement)
Thankx and again congrats :)
cheers
--
Akib Sayyed
Matrix-Shell
akibsayyed(a)gmail.com
akibsayyed(a)matrixshell.com
Mob:- +91-966-514-2243
